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EP1082782A1 - Dual polarised multi-range antenna - Google Patents

Dual polarised multi-range antenna

Info

Publication number
EP1082782A1
EP1082782A1 EP99953403A EP99953403A EP1082782A1 EP 1082782 A1 EP1082782 A1 EP 1082782A1 EP 99953403 A EP99953403 A EP 99953403A EP 99953403 A EP99953403 A EP 99953403A EP 1082782 A1 EP1082782 A1 EP 1082782A1
Authority
EP
European Patent Office
Prior art keywords
dipole
antenna
dual
antenna device
reflector
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP99953403A
Other languages
German (de)
French (fr)
Other versions
EP1082782B1 (en
Inventor
Maximilian GÖTTL
Roland Gabriel
Georg Klinger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kathrein SE
Original Assignee
Kathrein Werke KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kathrein Werke KG filed Critical Kathrein Werke KG
Publication of EP1082782A1 publication Critical patent/EP1082782A1/en
Application granted granted Critical
Publication of EP1082782B1 publication Critical patent/EP1082782B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/29—Combinations of different interacting antenna units for giving a desired directional characteristic
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/246—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for base stations
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
    • H01Q21/08—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a rectilinear path
    • H01Q21/10—Collinear arrangements of substantially straight elongated conductive units
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
    • H01Q21/26—Turnstile or like antennas comprising arrangements of three or more elongated elements disposed radially and symmetrically in a horizontal plane about a common centre
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/40—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements
    • H01Q5/42—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements using two or more imbricated arrays

Definitions

  • the invention relates to a dual polarized multi-range antenna according to the preamble of claim 1.
  • Dual polarized multi-range antennas are used to emit (or receive) two linear orthogonally aligned polarizations, which can be aligned, for example, vertically and horizontally. In practice, however, those applications are particularly important in which the polarizations are aligned by + 45 ° and -45 ° to the vertical (or to the horizontal). In the case of dual-polarized multi-range antennas, these are operated in at least two frequency bands, as a rule with two widely spaced center frequencies. The upper center frequency should be at least 1.5 times the lower center frequency.
  • Tennenmodule or antenna arrays namely used for transmission or reception in one and for transmission or reception in the other frequency band range (frequency band).
  • Dual polarized antennas as such are known. They serve for the simultaneous emission or reception of two orthogonal polarizations.
  • Such radiator arrangements can consist, for example, of several elements in the form of dipoles, slots, planar radiating elements or so-called patch radiators, as described, for example, in EP 0 685 900 AI or from the prior publication "Antennas, Part 2, Bibliographical Institute, Mannheim / Vienna / Zurich , 1970, pp. 47 to 50 "are known.
  • dipoles arranged in a cross shape (cross dipoles) or double dipole arrangements which have a square structure in plan view (dipole square) are preferably used.
  • Dual polarized antennas are also known, for example, from WO 98/01923.
  • Dual polarized antennas are also known from the publication "Dual Frequency Patch Antennas", IEEE AP Magazine, page 13 ff. It describes dual-polarized multi-range antennas that use different patch structures but have a number of disadvantages. For example, inadequate decoupling is typical of both polarizations.
  • the versions described only allow a tale / vertical position alignment. For example, it is not possible with simple means to produce a multiple array arrangement with a + 45 ° / -45 ° orientation.
  • antenna forms in turn use two antennas, which are arranged one above the other, for the respective frequency range.
  • a microstrip antenna is known from DE-Al 362 079, which, however, is suitable for radiation in two frequency ranges with only one polarization.
  • This antenna arrangement not only has a low gain, but it also proves to be disadvantageous that the radiation diagrams which can be achieved with such an antenna cannot be used for array antennas.
  • This should therefore be operable at least in two frequency ranges that are preferably far apart.
  • it should preferably have a high decoupling between the two polarizations.
  • the dual-polarized multi-range antenna according to the invention has previously unknown advantages and features. These advantages concern both the decoupling, the bandwidth, the sensitivity and the flexibility of the antenna.
  • the antenna according to the invention is characterized in that it has at least one cross-dipole-shaped radiator module in the manner of a dipole square, which is located in front of a reflector and which can be operated with dual polarization in two orthogonal orientations, which, as a rule, ie preferably an orientation take from + 45 ° and -45 ° to the vertical or horizontal.
  • This radiator module in the form of a dipole square can be operated in a lower frequency range.
  • dipoles are now provided for operation in a second upper frequency band with dual polarization, the further dipoles being arranged within the dipole square.
  • the other dipoles are preferably designed as cross dipoles.
  • the dipole elements are aligned parallel or perpendicular to the dipole elements of the dipole square, ie they also have an orientation of + 45 ° and -45 ° with respect to the vertical or horizontal with an X antenna.
  • the respective mounting of the dipoles of the lower frequency range which simultaneously function as so-called symmetrization, is designed and / or arranged and / or dimensioned such that no resonance in the upper frequency range or at least no relevant one Resonance upper frequency range occurs.
  • the height of the dipoles is arranged no further than one wavelength from the reflector or the reflector plane.
  • Favorable values lie in a range from 1/8 to% of the respective operating wavelength.
  • the antenna according to the invention is above all that it is broadband on the one hand and on the other hand has a high decoupling between the two polarizations. It is characterized in particular by the fact that it is possible with the antenna according to the invention to ensure that the horizontal half-widths of the two radiator modules are identical or nearly identical, both in the lower and in the upper frequency band range, that is to say are essentially the same size.
  • the antenna according to the invention is constructed not only with a dipole square and a cross dipole arranged therein, but rather in the manner of an antenna array with a plurality of such square dipoles, each with further internal dipoles, preferably in the form of cross dipoles .
  • a further radiator module for radiating the upper frequency band between the two dipole squares for transmitting and receiving the lower frequency band.
  • This further radiator module is then preferably not designed as a dipole cross, but also as a dipole square.
  • Figure 1 is a schematic plan view of an embodiment of a dual polarized multi-range antenna according to the invention
  • Figure 2 is a schematic side view parallel to the reflector
  • Figure 3 is a schematic perspective view of the embodiment shown in Figure 1 and Figure 2;
  • Figure 4 a modified embodiment with several assembled to an array
  • FIG. 5 an exemplary embodiment modified from FIG. 4;
  • FIG. 6 a top view of the exemplary embodiment according to FIG. 5;
  • FIG. 7 a side view of the exemplary embodiment according to FIGS. 5 and 6.
  • 1 and 2 show a schematic top view and a side view parallel to a reflector of a dual-polarized multi-range antenna which comprises a first radiator module 1 for a first frequency range and a second radiator module 3 for a second frequency range.
  • the two radiator modules 1, 3 are arranged in front of a reflector 5 which is almost square in the exemplary embodiment shown.
  • the reflector is conductive.
  • a feed network can be located on the rear of the reflector, via which the first and also the second radiator module are electrically connected separately.
  • the first radiator module 1 consists of several dipoles la, namely in the exemplary embodiment shown four dipoles la, which are arranged in the manner of a dipole square.
  • the dipoles 1 a are held mechanically by a so-called symmetry 7 with respect to the reflector or a circuit board located behind them, and are electrically contacted, that is to say fed, via the feed network mentioned.
  • the reflector plate itself has a reflector edge 6, which in the exemplary embodiment shown rises vertically from the plane of the reflector plate 15 at a certain height, as a result of which the radiation diagram can be influenced in an advantageous manner. 2
  • the length of the dipole elements of the first radiator module is coordinated so that a lower frequency range corresponding electromagnetic waves can be sent or received.
  • the orthogonal alignment of the dipole elements creates a dual-polarized antenna in a known manner.
  • the dipoles 1 a are oriented at an angle of + 45 ° and -45 ° with respect to the vertical (or equally with respect to the horizontal), specifically with the formation of an antenna, also referred to as X-polarized for short.
  • the second radiator module 3 is now located within the first radiator module 1 formed in the manner of a dipole square.
  • this second radiator module 3 is not formed as a dipole square, but in the form of a cross dipole.
  • the two orthogonally positioned dipoles 3a are also mechanically supported and electrically fed again via the symmetrization 9 assigned to them with respect to the reflector or a circuit board located behind it.
  • This second radiator module 3 is operated in an upper frequency range, the upper center frequency being approximately twice the lower center frequency of the first radiator module 1 in the exemplary embodiment shown.
  • horizontal half-value widths in both frequency ranges of approximately 60 ° can be generated and, at the same time, high decoupling values with regard to the different + 45 ° polarizations can be achieved.
  • a comparable arrangement is also conceivable, not with an X-shaped orientation, but with an extension direction vertical / horizontal, in which the one dipole elements la or 3a are horizontal and the orthogonal dipole elements are aligned vertically.
  • both the first and the second radiator modules 1, 3 are arranged at a distance in front of the reflector 5, to be precise at a different distance.
  • the height of the dipoles above the reflector should not be more than the operating wavelength of the associated operating frequency, preferably not more than half the associated operating wavelength. However, the distance is preferably more than 1/16, in particular more than 1/8, of the associated operating wavelength.
  • the antenna thus formed has such outstanding characteristic properties.
  • a similar radiation pattern, which is not to be expected per se, results for the two radiator modules for both frequency ranges can possibly be explained, inter alia, by the fact that the dipole elements 1 a of the first radiator module act as reflectors with respect to the second radiator module 3.
  • FIG. 4 shows an embodiment for higher gain values of the antenna.
  • the dual-polarized multi-range antenna thus formed consists of two antenna arrangements explained with reference to FIGS. 1 to 3, in which the radiator modules are again aligned in the + 45 ° direction to one another and the mounting directions of the two antenna arrangements shown individually in FIG. 1 are arranged one above the other in the vertical direction.
  • the antenna modules can also be assembled into an antenna array in the horizontal mounting direction.
  • several antenna modules can also be cascaded laterally next to and above one another in several rows and columns.
  • Corresponding radiator arrangements for the upper frequency range that is to say with additional second radiator modules 3 ′, are filled in the spaces between the respective first radiator modules 1 for the lower frequency range.
  • two radiator modules 1 and a second radiator module 3 with dipole elements 3b are arranged in front of a reflector plate.
  • the antenna produced in this way has a high vertical gain, with the same horizontal half-value width of approximately 60 ° being achievable for both radiator modules.
  • the radiator modules 3 arranged in the first radiator modules 1 differ from the second radiator module. len 3 'can distinguish, which are arranged in the spaces 15 between the first dipole squares 1.
  • the additional radiator module 3 arranged between two radiator modules 1 in FIG. 4 consists of a cross dipole, ie a cross-shaped dipole arrangement, and in the embodiment according to FIG. 5 a dipole square, ie generally a dipole square-like dipole arrangement 3 "with dipole elements 3b.
  • This fine adjustment and tuning enables an improved adjustment of the half-width of the radiator arrangement for the upper and lower frequency range to be achieved.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Aerials With Secondary Devices (AREA)
  • Waveguide Aerials (AREA)

Abstract

The invention relates to an improved dual polarised multi-range antenna, comprising a first and a second radiation module (1, 3) for transmitting or receiving a first frequency band and a second frequency band offset from the first. Said dual polarised multi-range antenna is characterised by the following: seen from above the antenna, the second, additional, radiation module (3) provided for the upper frequency range is located inside the dipole square of the first radiation module (1); the second radiation module (3) consists of dipolar elements (3a) which are oriented orthogonally in relation to each other; the dipolar elements (3a) of the second radiation module (3) are parallel or vertical in relation to the dipolar elements (1a) of the first radiation module (1), forming a dipole square; and the ratio of the middle frequency of the upper frequency band to that of the lower frequency band is between 1,5 and 4.

Description

Dual polarisierte MehrbereichsantenneDual polarized multi-range antenna
Die Erfindung betrifft eine dual polarisierte Mehrbe- reichsantenne nach dem Oberbegriff des Anspruches 1.The invention relates to a dual polarized multi-range antenna according to the preamble of claim 1.
Dual polarisierte Mehrbereichsantennen dienen zum Abstrahlen (oder Empfangen) von zwei linearen orthogonal ausgerichteten Polarisationen, welche beispielsweise vertikal und horizontal ausgerichtet sein können. In der Praxis sind aber insbesondere auch solche Einsatzfälle von Bedeutung, in denen die Polarisationen um +45° und -45° zur Vertikalen (bzw. gegenüber der Horizontalen) ausgerichtet sind. Im Falle von dual polarisierten Mehrbereichsantennen werden diese in mindestens zwei Frequenzbändern, in der Regel mit zwei weit auseinanderliegenen Mittenfrequenzen betrieben. Hierbei sollte die obere Mittenfrequenz zumindest das 1,5-fache der unteren Mittenfrequenz betragen.Dual polarized multi-range antennas are used to emit (or receive) two linear orthogonally aligned polarizations, which can be aligned, for example, vertically and horizontally. In practice, however, those applications are particularly important in which the polarizations are aligned by + 45 ° and -45 ° to the vertical (or to the horizontal). In the case of dual-polarized multi-range antennas, these are operated in at least two frequency bands, as a rule with two widely spaced center frequencies. The upper center frequency should be at least 1.5 times the lower center frequency.
Bei einem derartig großen Frequenzabstand werden üblicherweise zwei räumlich voneinander getrennt angeordnete An- tennenmodule oder Antennenarrays, nämlich zur Ausstrahlung bzw. zum Empfang in dem einen und zur Ausstrahlung bzw. zum Empfang in dem anderen Frequenzbandbereich (Frequenzband) verwendet .With such a large frequency spacing, two arrays are usually arranged spatially separated from one another. Tennenmodule or antenna arrays, namely used for transmission or reception in one and for transmission or reception in the other frequency band range (frequency band).
Dual polarisierte Antennen als solche sind bekannt. Sie dienen zum gleichzeitigen Abstrahlen oder Empfangen von zwei orthogonalen Polarisationen. Dabei können derartige Strahleranordnungen beispielsweise aus mehreren Elementen in Form von Dipolen, Schlitzen, Planarstrahlelementen oder sogenannten Patchstrahlern bestehen, wie sie beispielsweise aus der EP 0 685 900 AI oder aus der Vorveröffentlichung "Antennen, 2. Teil, Bibliographisches Institut, Mannheim/ Wien/Zürich, 1970, S. 47 bis 50" bekannt sind. Bei den Dipolanordnungen werden bevorzugt kreuzförmig angeordnete Dipole (Kreuzdipole) oder Doppeldipolanordnungen, welche in der Draufsicht eine quadratische Struktur aufweisen (Dipolquadrat) verwendet.Dual polarized antennas as such are known. They serve for the simultaneous emission or reception of two orthogonal polarizations. Such radiator arrangements can consist, for example, of several elements in the form of dipoles, slots, planar radiating elements or so-called patch radiators, as described, for example, in EP 0 685 900 AI or from the prior publication "Antennas, Part 2, Bibliographical Institute, Mannheim / Vienna / Zurich , 1970, pp. 47 to 50 "are known. In the case of the dipole arrangements, dipoles arranged in a cross shape (cross dipoles) or double dipole arrangements which have a square structure in plan view (dipole square) are preferably used.
Dual polarisierte Antennen sind ferner beispielsweise auch aus der WO 98/01923 bekannt.Dual polarized antennas are also known, for example, from WO 98/01923.
Dual polarisierte Antennen sind ebenfalls aus der Veröffentlichung "Dual -Frequency Patch Antennas" , IEEE AP Magazine, Seite 13 ff. bekannt. Darin werden dual polarisierte Mehrbereichsantennen beschrieben, welche verschiedene Patchstrukturen verwenden, jedoch eine Reihe von Nachteilen aufweisen. So ist beispielsweise eine unzureichende Entkopplung für beide Polarisationen typisch. Die beschriebenen Ausführungen ermöglichen nur eine horizon- tale/vertikale Positionsausrichtung. Es ist mit einfachen Mitteln beispielsweise nicht möglich, eine Mehrfach-Array- Anordnung mit einer +45°/-45° -Ausrichtung zu erzeugen.Dual polarized antennas are also known from the publication "Dual Frequency Patch Antennas", IEEE AP Magazine, page 13 ff. It describes dual-polarized multi-range antennas that use different patch structures but have a number of disadvantages. For example, inadequate decoupling is typical of both polarizations. The versions described only allow a tale / vertical position alignment. For example, it is not possible with simple means to produce a multiple array arrangement with a + 45 ° / -45 ° orientation.
Weitere bekannt gewordene Antennenformen nutzen wiederum zwei übereinander getrennt angeordnete Antennen für den jeweiligen Frequenzbereich.Further known antenna forms in turn use two antennas, which are arranged one above the other, for the respective frequency range.
Schließlich ist beispielsweise eine Microstrip-Antenne aus der DE-Al 362 079 bekannt, die zur Ausstrahlung in zwei Frequenzbereichen allerdings mit nur einer Polarisation geeignet ist. Diese Antennenanordnung weist nicht nur einen niedrigen Gewinn auf, sondern es erweist sich ferner als nachteilig, daß die mit einer derartigen Antenne er- zielbaren Strahlungsdiagramme nicht für Arrayantennen einsetzbar sind.Finally, for example, a microstrip antenna is known from DE-Al 362 079, which, however, is suitable for radiation in two frequency ranges with only one polarization. This antenna arrangement not only has a low gain, but it also proves to be disadvantageous that the radiation diagrams which can be achieved with such an antenna cannot be used for array antennas.
Demgegenüber ist es Aufgabe der vorliegenden Erfindung eine dual polarisierte, insbesondere eine sogenannte X- polarisierte Mehrbereichsantenne zu schaffen, die die oben genannten Nachteile vermeidet. Diese soll also zumindest in zwei vorzugsweise weit auseinanderliegenden Frequenzbereichen betreibbar sein. Zudem soll sie bevorzugt eine hohe Entkopplung zwischen beiden Polarisationen besitzen.In contrast, it is an object of the present invention to provide a dual-polarized, in particular a so-called X-polarized, multi-range antenna which avoids the disadvantages mentioned above. This should therefore be operable at least in two frequency ranges that are preferably far apart. In addition, it should preferably have a high decoupling between the two polarizations.
Die Aufgabe wird erfindungsgemäß entsprechend den im Anspruch 1 bzw. 2 angegebenen Merkmalen gelöst. Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen angegeben. Die erfindungsgemäße dual polarisierte Mehrbereichsantenne weist bisher ungeahnte Vorteile und Merkmale auf. Diese Vorteile betreffen sowohl die Entkopplung, die Bandbreite, die Empfindlichkeit als auch die Flexibilität der Antenne. Die erfindungsgemäße Antenne zeichnet sich dadurch aus, daß sie zumindest ein kreuzdipolförmiges Strahlermodul nach Art eines Dipolquadrates aufweist, welches sich vor einem Reflektor befindet und welches mit dualer Polarisation in zwei orthogonal zueinander stehenden Ausrichtungen betrieben werden kann, die in der Regel, d.h. vorzugsweise eine Ausrichtung von +45° und -45° gegenüber der Vertikalen bzw. Horizontalen einnehmen. Dieses Strahlermodul in Form eines Dipolquadrates kann in einem unteren Frequenzbereich betrieben werden. Erfindungsgemäß sind aber nun- mehr weitere Dipole zum Betrieb in einem zweiten oberen Frequenzband mit dualer Polarisation vorgesehen, wobei die weiteren Dipole innerhalb des Dipolquadrates angeordnet sind. Zudem sind die weiteren Dipole vorzugsweise als Kreuzdipol ausgebildet. Die Dipolelemente sind dabei par- allel bzw. senkrecht zu den Dipolelementen des Dipolquadrates ausgerichtet, weisen also bei einer X-Antenne ebenfalls eine Ausrichtung von +45° und -45° gegenüber der Vertikalen bzw. Horizontalen auf.The object is achieved according to the features specified in claim 1 or 2. Advantageous embodiments of the invention are specified in the subclaims. The dual-polarized multi-range antenna according to the invention has previously unknown advantages and features. These advantages concern both the decoupling, the bandwidth, the sensitivity and the flexibility of the antenna. The antenna according to the invention is characterized in that it has at least one cross-dipole-shaped radiator module in the manner of a dipole square, which is located in front of a reflector and which can be operated with dual polarization in two orthogonal orientations, which, as a rule, ie preferably an orientation take from + 45 ° and -45 ° to the vertical or horizontal. This radiator module in the form of a dipole square can be operated in a lower frequency range. According to the invention, however, further dipoles are now provided for operation in a second upper frequency band with dual polarization, the further dipoles being arranged within the dipole square. In addition, the other dipoles are preferably designed as cross dipoles. The dipole elements are aligned parallel or perpendicular to the dipole elements of the dipole square, ie they also have an orientation of + 45 ° and -45 ° with respect to the vertical or horizontal with an X antenna.
In einer Weiterbildung der Erfindung ist vorgesehen, daß die jeweilige Halterung der Dipole des unteren Frequenzbereiches, welche gleichzeitig als sogenannte Symmetrie- rung arbeiten, so gestaltet und/oder angeordnet und/oder dimensioniert ist, daß dadurch keine Resonanz im oberen Frequenzbereich oder zumindest keine relevante Resonanz irr. oberen Frequenzbereich auftritt.In a further development of the invention it is provided that the respective mounting of the dipoles of the lower frequency range, which simultaneously function as so-called symmetrization, is designed and / or arranged and / or dimensioned such that no resonance in the upper frequency range or at least no relevant one Resonance upper frequency range occurs.
Es hat sich ferner als günstig erwiesen, wenn die Höhe der Dipole entsprechend der ihnen zugeordneten frequenzabhän- gigen Wellenlänge nicht weiter als eine Wellenlänge von dem Reflektor bzw. der Reflektorebene entfernt angeordnet sind. Günstige Werte liegen in einem Bereich von 1/8 bis % der jeweiligen Betriebs-Wellenlänge.It has also proven to be advantageous if the height of the dipoles, according to the frequency-dependent wavelength assigned to them, is arranged no further than one wavelength from the reflector or the reflector plane. Favorable values lie in a range from 1/8 to% of the respective operating wavelength.
Überraschend ist bei der erfindungsgemäßen Antenne vor allem, daß sie zum einen breitbandig ist und zum anderen dabei eine hohe Entkopplung zwischen beiden Polarisationen besitzt. Sie zeichnet sich vor allem auch dadurch aus, daß es mit der erfindungsgemäßen Antenne möglich ist zu ge- währleisten, daß die horizontalen Halbwertsbreiten beider Strahlermodule sowohl im unteren als auch im oberen Frequenzbandbereich identisch oder nahezu identisch sind, also im wesentlichen gleich groß sind.What is surprising in the antenna according to the invention is above all that it is broadband on the one hand and on the other hand has a high decoupling between the two polarizations. It is characterized in particular by the fact that it is possible with the antenna according to the invention to ensure that the horizontal half-widths of the two radiator modules are identical or nearly identical, both in the lower and in the upper frequency band range, that is to say are essentially the same size.
Die erfindungsgemäßen Vorteile lassen sich vor allem auch dann realisieren, wenn die erfindungsgemäße Antenne nicht nur mit einem Dipolquadrat und einem darin angeordneten Kreuzdipol, sondern nach Art eines Antennenarrays mit mehreren derartigen Quadratdipolen mit jeweils weiteren in- nenliegenden Dipolen, vorzugsweise in Form von Kreuzdipolen aufgebaut ist. Insbesondere bei dieser Ausführungsform ist es möglich, zwischen den beiden Dipolquadraten zum Senden und Empfangen des unteren Frequenzbandes jeweils ein weiteres Strahlermodul zur Ausstrahlung des oberen Frequenzbandes vorzusehen. Dieses weitere Strahlermodul ist dann jedoch bevorzugt nicht als Dipolkreuz, sondern ebenfalls als Dipolquadrat ausgebildet .The advantages according to the invention can be realized above all if the antenna according to the invention is constructed not only with a dipole square and a cross dipole arranged therein, but rather in the manner of an antenna array with a plurality of such square dipoles, each with further internal dipoles, preferably in the form of cross dipoles . In this embodiment in particular, it is possible to provide a further radiator module for radiating the upper frequency band between the two dipole squares for transmitting and receiving the lower frequency band. This further radiator module is then preferably not designed as a dipole cross, but also as a dipole square.
Die Erfindung wird nachfolgend anhand von Zeichnungen näher erläutert. Dabei zeigen im einzelnen:The invention is explained in more detail below with reference to drawings. The individual shows:
Figur 1 : eine schematische Draufsicht auf ein erfindungsgemäßes Ausführungsbeispiel einer dual polarisierten Mehrbereichsantenne;Figure 1 is a schematic plan view of an embodiment of a dual polarized multi-range antenna according to the invention;
Figur 2 : eine schematische Seitenansicht parallel zum Reflektor;Figure 2 is a schematic side view parallel to the reflector;
Figur 3 : eine schematische perspektivische Darstellung des in Figur 1 und Figur 2 wiedergegebenen Ausführungsbeispieles;Figure 3 is a schematic perspective view of the embodiment shown in Figure 1 and Figure 2;
Figur 4 : ein abgewandeltes Ausführungsbeispiel mit mehreren zu einem Array zusammengestelltenFigure 4: a modified embodiment with several assembled to an array
Antennenmodul ;Antenna module;
Figur 5 : ein zu Figur 4 abgewandeltes Ausführungs- beispiel ;FIG. 5: an exemplary embodiment modified from FIG. 4;
Figur 6 : eine Draufsicht auf das Ausführungsbei - spiel gemäß Figur 5; undFIG. 6: a top view of the exemplary embodiment according to FIG. 5; and
Figur 7 : eine Seitenansicht auf das Ausführungsbei- spiel gemäß Figur 5 und 6. In den Figuren 1 und 2 ist in schematischer Draufsicht bzw. Seitenansicht parallel zu einem Reflektor einer dual polarisierten Mehrbereichsantenne wiedergegeben, die ein erstes Strahlermodul 1 für einen ersten Frequenzbereich und ein zweites Strahlermodul 3 für einen zweiten Frequenzbereich umfaßt .FIG. 7: a side view of the exemplary embodiment according to FIGS. 5 and 6. 1 and 2 show a schematic top view and a side view parallel to a reflector of a dual-polarized multi-range antenna which comprises a first radiator module 1 for a first frequency range and a second radiator module 3 for a second frequency range.
Die beiden Strahlermodule 1, 3 sind vor einem, im gezeigten Ausführungsbeispiel nahezu quadratisch geformten Re- flektor 5 angeordnet. Der Reflektor ist leitend. Auf der Rückseite des Reflektors kann sich ein Speisenetzwerk befinden, worüber das erste wie auch das zweite Strahlermodul getrennt elektrisch angeschlossen sind. Das erste Strahlermodul 1 besteht dabei aus mehreren Dipolen la, nämlich im gezeigten Ausführungsbeispiel aus vier Dipolen la, die nach Art eines Dipolquadrates angeordnet sind. Die Dipole la werden über eine sogenannte Symmetrierung 7 gegenüber dem Reflektor oder einer dahinter befindlichen Platine mechanisch gehalten und über das erwähnte Speise- netzwerk elektrisch kontaktiert, also gespeist.The two radiator modules 1, 3 are arranged in front of a reflector 5 which is almost square in the exemplary embodiment shown. The reflector is conductive. A feed network can be located on the rear of the reflector, via which the first and also the second radiator module are electrically connected separately. The first radiator module 1 consists of several dipoles la, namely in the exemplary embodiment shown four dipoles la, which are arranged in the manner of a dipole square. The dipoles 1 a are held mechanically by a so-called symmetry 7 with respect to the reflector or a circuit board located behind them, and are electrically contacted, that is to say fed, via the feed network mentioned.
Das Reflektorblech selbst weist in horizontaler Abstrahl- richtung jeweils einen, im gezeigten Ausführungsbeispiel sich senkrecht von der Ebene des Reflektorbleches 15 in einer gewissen Höhe erhebenden Reflektorrand 6 auf, wodurch das Abstrahlungsdiagramm in vorteilhafter Weise beeinflußt werden kann. 2In the horizontal radiation direction, the reflector plate itself has a reflector edge 6, which in the exemplary embodiment shown rises vertically from the plane of the reflector plate 15 at a certain height, as a result of which the radiation diagram can be influenced in an advantageous manner. 2
Die Länge der Dipolelemente des ersten Strahlermoduls ist so abgestimmt, daß darüber in einem unteren Frequenzbe- reich entsprechende elektromagnetische Wellen gesendet oder empfangen werden können. Durch die orthogonale Ausrichtung der Dipolelemente wird dadurch in bekannter Weise eine dualpolarisierte Antenne geschaffen. Die Ausrichtung der Dipole la erfolgt im Ausführungsbeispiel jeweils in einem Winkel von +45° und -45° gegenüber der Vertikalen (bzw. gleichermaßen gegenüber der Horizontalen) , und zwar unter Bildung einer auch kurz als X-polarisierten bezeichneten Antenne.The length of the dipole elements of the first radiator module is coordinated so that a lower frequency range corresponding electromagnetic waves can be sent or received. The orthogonal alignment of the dipole elements creates a dual-polarized antenna in a known manner. In the exemplary embodiment, the dipoles 1 a are oriented at an angle of + 45 ° and -45 ° with respect to the vertical (or equally with respect to the horizontal), specifically with the formation of an antenna, also referred to as X-polarized for short.
Innerhalb des ersten nach Art eines Dipolquadrates gebildeten Strahlermodules 1 befindet sich nunmehr das zweite Strahlermodul 3. Dieses zweite Strahlermodul 3 ist im gezeigten Ausführungsbeispiel nicht als Dipolquadrat, sondern in Form eines Kreuzdipoles gebildet . Die beiden orthogonal aufeinanderstehenden Dipole 3a werden ebenfalls wieder über die ihnen zugeordnete Symmetrierung 9 gegenüber dem Reflektor oder einer dahinter befindlichen Platine mechanisch abgestützt und elektrisch gespeist.The second radiator module 3 is now located within the first radiator module 1 formed in the manner of a dipole square. In the exemplary embodiment shown, this second radiator module 3 is not formed as a dipole square, but in the form of a cross dipole. The two orthogonally positioned dipoles 3a are also mechanically supported and electrically fed again via the symmetrization 9 assigned to them with respect to the reflector or a circuit board located behind it.
Dieses zweite Strahlermodul 3 wird in einem oberen Frequenzbereich betrieben, wobei im gezeigten Ausführungsbei - spiel die obere Mittenfrequenz etwa das doppelte der u- nteren Mittenfrequenz des ersten Strahlermoduls 1 beträgt. Mittels dieser Anordnung lassen sich horizontale Halbwertsbreiten in beiden Frequenzbereichen von ca. 60° erzeugen und gleichzeitig hohe Entkopplungswerte bezüglich der unterschiedlichen +45° Polarisationen erreichen. Denkbar ist aber ebenfalls eine vergleichbare Anordnung nicht mit einer X-förmigen Ausrichtung, sondern mit einer Aus- richtung vertikal/horizontal, bei der die einen Dipol - elemente la bzw. 3a horizontal und die orthogonalen Dipol - elemente dazu vertikal ausgerichtet sind.This second radiator module 3 is operated in an upper frequency range, the upper center frequency being approximately twice the lower center frequency of the first radiator module 1 in the exemplary embodiment shown. With this arrangement, horizontal half-value widths in both frequency ranges of approximately 60 ° can be generated and, at the same time, high decoupling values with regard to the different + 45 ° polarizations can be achieved. However, a comparable arrangement is also conceivable, not with an X-shaped orientation, but with an extension direction vertical / horizontal, in which the one dipole elements la or 3a are horizontal and the orthogonal dipole elements are aligned vertically.
Wie es sich aus der Seitendarstellung gemäß Figur 2 ergibt, ist ersichtlich, daß sowohl das erste wie auch das zweite Strahlermodul 1, 3 in Abstand vor dem Reflektor 5 angeordnet sind, und zwar in unterschiedlichem Abstand. Die Höhe der Dipole über dem Reflektor soll nicht mehr als die Betriebswellenlänge der zugehörigen Betriebsfrequenz betragen, vorzugsweise nicht mehr als der halben zugehörigen Betriebswellenlänge. Bevorzugt beträgt der Abstand aber mehr als 1/16, insbesondere mehr als 1/8 der zugehörigen Betriebswellenlänge.As can be seen from the side view according to FIG. 2, it can be seen that both the first and the second radiator modules 1, 3 are arranged at a distance in front of the reflector 5, to be precise at a different distance. The height of the dipoles above the reflector should not be more than the operating wavelength of the associated operating frequency, preferably not more than half the associated operating wavelength. However, the distance is preferably more than 1/16, in particular more than 1/8, of the associated operating wavelength.
Das überraschende ist, daß trotz der ineinander verschachtelten Anordnung der Strahlermodule, wobei das erste Strahlermodul aus einem Dipolquadrat besteht und bevorzugt das zweite Strahlermodul 3 aus einem Kreuzdipol, die so gebildete Antenne derart überragende charakteristischen Eigenschaften aufweist. Daß sich für beide Strahlermodule für beide Frequenzbereiche ein ähnliches an sich nicht zu erwartendes Abstrahlungsdiagramm ergibt, läßt sich eventuell unter anderem damit erklären, daß die Dipolelemente la des ersten Strahlermoduls als Reflektoren bezüglich des zweiten Strahlermoduls 3 wirken.The surprising thing is that despite the nested arrangement of the radiator modules, the first radiator module consisting of a dipole square and preferably the second radiator module 3 consisting of a cross dipole, the antenna thus formed has such outstanding characteristic properties. The fact that a similar radiation pattern, which is not to be expected per se, results for the two radiator modules for both frequency ranges can possibly be explained, inter alia, by the fact that the dipole elements 1 a of the first radiator module act as reflectors with respect to the second radiator module 3.
Anhand von Figur 4 ist eine erweitere dualpolarisierte Mehrbereichsantenne gezeigt, die eine Ausführungsform für höhere Gewinnwerte der Antenne wiedergibt. Dazu ist es notwendig, mehrere der anhand der Figuren 1 bis 3 erläuterten Dipolanordnungen entsprechend zu kaska- dieren. Im gezeigten Ausführungsbeispiel besteht die so gebildete dualpolarisierte Mehrbereichsantenne aus zwei anhand der Figuren 1 bis 3 erläuterten Antennenanordnungen, bei denen die Strahlermodule wieder in +45° Richtung zueinander ausgerichtet sind und die Anbaurichtungen der beiden in Figur 1 einzeln wiedergegebenen Antennenanordnungen in Vertikalrichtung übereinander angeordnet sind. Genauso können die Antennenmodule aber auch in horizontaler Anbaurichtung zu einem Antennenarray zusammengebaut werden. Schließlich können auch in mehreren Reihen und Spalten mehrere Antennenmodule seitlich neben- und übereinander kaskadiert werden.An extended dual-polarized multi-range antenna is shown with reference to FIG. 4, which shows an embodiment for higher gain values of the antenna. For this purpose, it is necessary to cascade several of the dipole arrangements explained with reference to FIGS. 1 to 3. In the exemplary embodiment shown, the dual-polarized multi-range antenna thus formed consists of two antenna arrangements explained with reference to FIGS. 1 to 3, in which the radiator modules are again aligned in the + 45 ° direction to one another and the mounting directions of the two antenna arrangements shown individually in FIG. 1 are arranged one above the other in the vertical direction. In the same way, the antenna modules can also be assembled into an antenna array in the horizontal mounting direction. Finally, several antenna modules can also be cascaded laterally next to and above one another in several rows and columns.
In den dabei entstehenden Zwischenräumen zwischen den jeweils ersten Strahlermodulen 1 für den unteren Frequenzbereich werden entsprechende Strahleranordnungen für den oberen Frequenzbereich, also mit zusätzlichen zweiten Strahlermodulen 3' aufgefüllt. Mit anderen Worten sind in dem gezeigten Ausführungsbeispiel zwei Strahlermodule 1 und ein zweites Strahlermodul 3 mit Dipolelementen 3b vor einem Reflektorblech angeordnet. Die dadurch erzeugte Antenne weist einen hohen vertikalen Gewinn auf, wobei für beide Strahlermodule die gleiche horizontale Halbwertsbreite von ca. 60° erzielbar ist.Corresponding radiator arrangements for the upper frequency range, that is to say with additional second radiator modules 3 ′, are filled in the spaces between the respective first radiator modules 1 for the lower frequency range. In other words, in the exemplary embodiment shown, two radiator modules 1 and a second radiator module 3 with dipole elements 3b are arranged in front of a reflector plate. The antenna produced in this way has a high vertical gain, with the same horizontal half-value width of approximately 60 ° being achievable for both radiator modules.
Schließlich ist anhand des Ausführungsbeispieles von FigurFinally, based on the embodiment of Figure
5 gezeigt, daß die in den ersten Strahlermodulen 1 an- geordneten Strahlermodule 3 sich vom zweiten Strahlermodu- len 3 ' unterscheiden können, die in den Zwischenräumen 15 zwischen den ersten Dipolquadraten 1 angeordnet sind. Denn wie aus den Figuren 4 und 5 zu ersehen ist, besteht das zwischen zwei Strahlermodulen 1 angeordnete zusätzliche Strahlermodul 3 in Figur 4 aus einem Kreuzdipol, d.h. einer kreuzförmigen Dipolanordnung, und bei der Ausführungsform gemäß Figur 5 aus einem Dipolquadrat, d.h. allgemein einer dipolquadratähnlichen Dipolanordnung 3" mit Dipolelementen 3b. Durch diese Feinanpassung und Abstim- ung kann eine verbesserte Angleichung der Halbwärtsbreite der Strahleranordnung für den oberen und unteren Frequenzbereich erzielt werden. 5 shows that the radiator modules 3 arranged in the first radiator modules 1 differ from the second radiator module. len 3 'can distinguish, which are arranged in the spaces 15 between the first dipole squares 1. As can be seen from FIGS. 4 and 5, the additional radiator module 3 arranged between two radiator modules 1 in FIG. 4 consists of a cross dipole, ie a cross-shaped dipole arrangement, and in the embodiment according to FIG. 5 a dipole square, ie generally a dipole square-like dipole arrangement 3 "with dipole elements 3b. This fine adjustment and tuning enables an improved adjustment of the half-width of the radiator arrangement for the upper and lower frequency range to be achieved.

Claims

Ansprüche ; Expectations ;
1. Dualpolarisierte Mehrbereichsantenne, mit zumindest einem Strahlermodul (1) , mit orthogonal zueinander stehen- den Dipolen (la) zur Abstrahlung bzw. zum Empfang elektromagnetischer Wellen mit zwei linearen orthogonalen Polarisationen, wobei die Dipolelemente (la) nach Art eines Dipolquadrates gebildet sind, welches sich vor einem Reflektor (5) befindet, wobei die Dipolelemente (la) vor- zugsweise in einer Ausrichtung +45° gegenüber der Vertikalen ausgerichtet sind sowie einem weiteren Strahlermodul (3) zum Senden bzw. Empfangen eines vom ersten Frequenz- bandbereich getrennten weiteren Frequenzbandbereiches, gekennzeichnet durch die folgenden weiteren Merkmale - das für den oberen Frequenzbereich vorgesehene weitere zweite Strahlermodul (3) ist in Draufsicht auf die Antenne innerhalb des Dipolquadrates des ersten Strahlermoduls (1) angeordnet, - das zweite Strahlermodul (3) besteht aus Dipolelementen (3a) , die orthogonal zueinander ausgerichtet sind, - die Dipolelemente (3a) des zweiten Strahlermoduls (3) sind parallel bzw. senkrecht zu den Dipolelementen (la) des ersten Strahlermoduls (1) in Form eines Dipolquadrates ausgerichtet, und - das Verhältnis der Mittenfrequenz des oberen zum unteren Frequenzbandes liegt zwischen 1,5 und 4.1. Dual-polarized multi-range antenna, with at least one radiator module (1), with dipoles (la) that are orthogonal to one another for radiation or reception of electromagnetic waves with two linear orthogonal polarizations, the dipole elements (la) being formed in the manner of a dipole square, which is located in front of a reflector (5), the dipole elements (la) preferably being aligned in an orientation + 45 ° with respect to the vertical, and a further radiator module (3) for transmitting or receiving a further one separate from the first frequency band range Frequency band range, characterized by the following further features - the second radiator module (3) provided for the upper frequency range is arranged in a plan view of the antenna within the dipole square of the first radiator module (1), - the second radiator module (3) consists of dipole elements (3a ) that are aligned orthogonally to each other, - The dipole elements (3a) of the second radiator module (3) are aligned parallel or perpendicular to the dipole elements (la) of the first radiator module (1) in the form of a dipole square, and - The ratio of the center frequency of the upper to the lower frequency band is between 1, 5 and 4.
2. Dualpolarisierte Mehrbereichsantenne zur Abstrahlung und/oder zum Empfang elektromagnetischer Wellen mit zwei linearen orthogonalen Polarisationen in zwei Frequenzbandbereichen, mit folgenden Merkmalen2. Dual-polarized multi-range antenna for radiation and / or reception of electromagnetic waves with two linear orthogonal polarizations in two frequency band ranges, with the following features
- mit einer ersten Antenneneinrichtung (1) in Form eines Dipolquadrates, welches orthogonal zueinanderstehende Dipole (la) umfaßt, - mit einer zweiten Antenneneinrichtung (3), welche orthogonal zueinanderstehende Dipole (3a) umfaßt, die innerhalb der ersten, nach Art eines Dipolquadrates gebildeten Antenneneinrichtung (1) konzentrisch zu dieser angeordnet ist, und - die erste und zweite Antenneneinrichtung (1, 3) sind vor einem Reflektor (5) angeordnet, gekennzeichnet durch die folgenden weiteren Merkmale- With a first antenna device (1) in the form of a dipole square, which comprises mutually orthogonal dipoles (la), - With a second antenna device (3), which comprises mutually orthogonal dipoles (3a), which are formed within the first, in the manner of a dipole square Antenna device (1) is arranged concentrically to this, and - the first and second antenna devices (1, 3) are arranged in front of a reflector (5), characterized by the following further features
- die zweite Antenneneinrichtung (13) besteht aus einem Kreuzdipol (3) , - die Dipole (3a) des Kreuzdipols (3) sind parallel bzw. senkrecht zu den Dipolen (la) der ersten Antenneneinrichtung (1) ausgerichtet, und- The second antenna device (13) consists of a cross dipole (3), - The dipoles (3a) of the cross dipole (3) are aligned parallel or perpendicular to the dipoles (la) of the first antenna device (1), and
- das Verhältnis der Mittenfrequenz des oberen und unteren Frequenzbandes liegt zwischen 1,5 und 4. - The ratio of the center frequency of the upper and lower frequency band is between 1.5 and 4.
3. Dualpolarisierte Antenne nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Höhe oder der Maximalabstand der Dipolelemente (la, 3a) über dem Reflektor (5) kleiner ist als die dem jeweiligen Dipolelement (la, 3a) zugeord- nete Betriebswellenlänge, vorzugsweise kleiner ist als die halbe Betriebswellenlänge.3. Dual polarized antenna according to claim 1 or 2, characterized in that the height or the maximum distance of the dipole elements (la, 3a) above the reflector (5) is smaller than the operating wavelength assigned to the respective dipole element (la, 3a), preferably is less than half the operating wavelength.
4. Dualpolarisierte Antenne nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, daß der minimale Abstand der Dipolelemente (la, 3a) über dem Reflektor (5) gleich oder größer 1/16 der zugehörigen Betriebswellenlänge, vorzugsweise größer als 1/8 der zugehörigen Betriebswellenlänge ist .4. Dual polarized antenna according to claim 1, 2 or 3, characterized in that the minimum distance of the dipole elements (la, 3a) on the reflector (5) is equal to or greater than 1/16 of the associated operating wavelength, preferably greater than 1/8 of the associated Operating wavelength is.
5. Dualpolarisierte Antenne nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Halterungen (9) der Dipolelemente (la) des für den unteren Frequenzbereich vorgesehenen Antenneneinrichtung (1) so dimensioniert und/oder geformt und/oder geneigt ausgerichtet sind, daß sie zum oberen Frequenzbereich resonanzfrei arbeiten.5. Dual-polarized antenna according to one of claims 1 to 4, characterized in that the holders (9) of the dipole elements (la) of the antenna device (1) provided for the lower frequency range are dimensioned and / or shaped and / or inclined so that they work resonance-free in the upper frequency range.
6. Dualpolarisierte Antenne nach Anspruch 5, dadurch gekennzeichnet, daß die Halterung der Dipolelemente (la) der ersten Antenneneinrichtung (1) durch die Symmetrierung der zugehörigen Dipolelemente (la) gebildet ist.6. Dual polarized antenna according to claim 5, characterized in that the mounting of the dipole elements (la) of the first antenna device (1) is formed by the symmetry of the associated dipole elements (la).
7. Dualpolarisierte Antenne nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Antenne so aufgebaut ist, daß die Dipolelemente (la, 3a) zu einer senkrecht zum Reflektor (5) stehenden und durch die Ecken des Dipolqua- drates der ersten Antenneneinrichtung (1) gelegten Ebene symmetrisch zu liegen kommen.7. Dual polarized antenna according to one of claims 1 to 6, characterized in that the antenna is constructed so that the dipole elements (la, 3a) to a perpendicular to the reflector (5) and through the corners of the dipole square third plane of the first antenna device (1) lies symmetrically.
8. Dualpolarisierte Antenne nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß mehrere Antenneneinrichtungen (1) mit im Inneren angeordneter zweiten Antenneneinrichtung (3) in Anbaurichtung, vorzugsweise in vertikaler Anbaurichtung übereinander vor einem Reflektor (5) angeordnet sind,8. Dual-polarized antenna according to one of claims 1 to 7, characterized in that a plurality of antenna devices (1) with a second antenna device (3) arranged inside are arranged one above the other in front of a reflector (5) in the mounting direction, preferably in the vertical mounting direction,
9. Dualpolarisierte Antenne nach Anspruch 8, dadurch gekennzeichnet, daß in den Zwischenräumen (15) zwischen zwei benachbarten ersten Antenneneinrichtungen (1) eine weitere zweite Antenneneinrichtung (3 ' , 3") vorgesehen ist.9. Dual polarized antenna according to claim 8, characterized in that a further second antenna device (3 ', 3 ") is provided in the spaces (15) between two adjacent first antenna devices (1).
10. Dualpolarisierte Antenne nach Anspruch 9, dadurch gekennzeichnet, daß die in den Zwischenräumen (15) sitzende weitere zweite Antenneneinrichtung (3 ' ) aus einem Kreuzdipol besteht .10. Dual polarized antenna according to claim 9, characterized in that the further second antenna device (3 ') seated in the spaces (15) consists of a cross dipole.
11. Dualpolarisierte Antenne nach Anspruch 9, dadurch gekennzeichnet, daß die in den Zwischenräumen (15) angeordnete zweite Antenneneinrichtung (3") in Form eines Dipolquadrates ausgebildet ist. 11. Dual polarized antenna according to claim 9, characterized in that the second antenna device (3 ") arranged in the spaces (15) is in the form of a dipole square.
EP99953403A 1998-05-27 1999-05-20 Dual polarised multi-range antenna Expired - Lifetime EP1082782B1 (en)

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CN1303528A (en) 2001-07-11
DE19823749C2 (en) 2002-07-11
DE59906301D1 (en) 2003-08-21
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US6333720B1 (en) 2001-12-25
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BR9911595B1 (en) 2013-07-16
WO1999062139A1 (en) 1999-12-02

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